Circular sawing machine.



No. 706,770. Patented Aug. l2, I902.

w. MILLER. CIRCULAR SAWING MACHINE.

(Application filed May 8, 1902.)

4 Sheets-Sheet L (m Model.)

Tn: nunms PETERS co, Moro-Lune WASHINGTON, n c.

No. 700,770. Patented Aug. 12, I902.

w. MILLER.

CIRCULAR SAWING MACHINE.

(Application filed May 6, 1902.)

4 Sheets-8heot 2.

(N0 Model.)

Tu: mmms PETERS co. r-wlmouwcu WASHINGTON. n. cy

N0. 706,770. Patented Aug. l2, I902.

W. MILLER.

CIRCULAR SAWING MACHINE (Application filed May 6, 1902.)

(No Model.)

4 Sheets-Sheet 3.

Fla. 6.

ml: uonms Hrnzns ca. Pnotmuma. wnsumurou. DIG.

No. 706,770. Patented Aug. l2, I902.

W. MILLER.

CIRCULAR SAWING MACHINE.

. (Application filed May 6 1902.) (No-Model.) 4 Shaets-Sheat 4.

Fla. 7

UNITED STATns ATENT OFFICE.

WILLIAM MILLER, OF FALKIRK, SCOTLAND.

CIRCULAR SAWING MACHINE.

PECIFIGATION forming part of Letters Patent No. 706,770, dated August12, 1902.

Application filed May 6, 1902. Serial No. 1061 (N0 111061813 T0 (Li/Zwhom it may concern: p

Be it known that I, WILLIAM'MILLER, a subject of the King of the UnitedKingdom of Great Britain and Ireland, residing at 134E Elrnbank Terrace,Falkirk, Stirlingshire, Scotland, have in vented certain new and usefulImprovements in Circular Sawing Machines, (for which application forpatent has been made in Great Britain, No. 20,054, dated October 8,1901,) of which the following is a specification.

This invention, which relates to circular sawing machines, has foritsobject to provide simple and inexpensive means whereby the saw-disk maybe set and held at any desired inclination on its rotating spindle as adrunken saw (and which are employed for' cutting grooves or notches)without having to introduce paper or other packing between the disk andcentral boss.

The invention has further for its object the provision of means wherebythe sides of grooves out by the saw are cleaned simultaneously with thesawing operation.

In the accompanying drawings, which illustrate the invention, Figure 1isa section taken diametrically of the saw-disk; and Fig. 2 is a plan ofthe socket-block with the saw-disk removed for clearness, but shown indotted lines. Figs. 3, 4, and 5 and 6 are views corresponding to Figs. 1and 2 of modified forms of the boss. Fig. 7 is an elevation of a sawdiskformedin accordance with my invention.

Under myiuvention the saw-disk a is either formed with a central cupor,as is preferred and as shown, is secured to a flange b on" ahemispherical cup I), fitted over the sawspindle c and held as in aball-and-socket joint between a concave socket-block (Z, fitted againsta shoulder c on the spindle c and a convex Washer e, so that it may besecured either at right angles to the spindle c, as shown in full lines,for ordinary work, or at any desired inclination, as shown in dottedlines, for cutting grooves or notches or for any use to whicha'drunkensaw maybe put. The cup I), to which't he saw-disk a, is boltedor otherwise secured, is'held between the concave socket-block (Z andthe convex washer e by pressure upon the latter of a screw-nut fon theend of the saw-spindle c, and in settingthe cup with the saw at aninclination it may be guided by a pin g in the cup entering an eccentricgroove 71 in the socket d. The socket-block d may, as shownat Figs. 1and 3, be locked to the convex washer e by a pin z' in the latterentering an orifice or recessj in the former, or these may, as shown atFig. 5, be merely clamped together by means of the nut f. A graduatedscale 76 may be provided upon the saw-disk or its boss I), as shown atFig. 3, and a suitable pointer on the convex washer e, or vice versa, sothat the angle at which the saw-disk is set in relation to its spindlemay be readily ascertained.

Referring to Fig. 7, two series of teeth Z are formed upon the saw-diska, as shown at x, or fitted to the same, as shown at y, on the samefigure, each series of teeth being set diametrically opposite each otherand beveled away from opposite sides of the vertical surfaces of thedisk, so that cutting edges each formed similarly to a plane-iron areprovided, which in the rotation of the saw clean or plane the verticalsides of the groove or notch being cut.

Having now described the invention, What I claim, and desire to secureby Letters Patent, is-

1. In a circular sawing machine, means for setting the saw-disk at anydesired inclination to, and retaining it upon its rotating spindle, saidmeans consisting of a cup-shaped boss on the saw-disk,a socket-blockadapted to receive said cup-shaped boss, aconveX-shaped washersurrounding the rotating spindle and a nutthreaded upon said spindle forclamping together the saw-disk boss, socket-block, and rotating spindle,substantially as described.

2. In a circular sawing machine means for setting the saw-disk at anydesired inclination to, and retaining it upon its rotatingspindle, saidmeans consisting of acup-shaped boss formed on or fitted to the saw-diskand having a pin projecting from-its surfacefa concave s0cket-blockadapted to receive said cupshaped boss, a groove in said socket-blockeccentric to the spindle orifice and adapted. to receive the pin uponthe cup-shaped boss of the saw-disk, a, convex washer surrounding I Inwitness whereof I have hereunto set my the spindle and adapted to enterthe euphand in presence of two witnesses. sha ped boss, and a nutthreaded upon the outer end of the saw-disk spindle for clamp- 5 ingtogether the saw-disk boss, socket-block, Witnesses:

and rotating spindle, substantially as de- WALLACE FAIRWEATHER, scribed.J NO. ARMSTRONG, J unr.

WILLIAM MILLER.

